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Finding the Fourth Proportional to 3,950.87, 5,913.42 and 2,910.45

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Solution

The fourth proportional to 3,950.87, 5,913.42 and 2,910.45 is: 4,356.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,950.87 : 5,913.42 = 2,910.45 : x
  2. Step 2: Convert to fraction form
    3,950.87/5,913.42 = 2,910.45/x
  3. Step 3: Cross multiply
    3,950.87x = 5,913.42 × 2,910.45
  4. Step 4: Simplify right side
    3,950.87x = 17,210,713.24
  5. Step 5: Solve for x
    x = 17,210,713.24/3,950.87
  6. Step 6: Final answer
    x = 4,356.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.